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National Instruments Corporation

Configure and Install Your GPIB-PCII/IIA

Step

Configure the GPIB-PCII/IIA DMA Channel

Change the jumper settings to match the DMA channel assigned to your board. You must set both

the DMA Acknowledge and DMA Request lines. By default, the GPIB-PCII/IIA is configured to use

DMA channel 1.

If you do not know what resources were assigned to your GPIB-PCII/IIA, click here to Determine

Assigned Resources.

Table 6. GPIB-PCII/IIA DMA Channel Settings

DMA Channel DMA Jumpers

1, 2, or 3

(DMA 3 is shown)

No DMA

DRQ1

DACK1

DRQ2

DACK2

DRQ3

DACK3

DRQ1

DACK1

DRQ2

DACK2

DRQ3

DACK3

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Locator

Diagram

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NI GPIB Series Specifications

General

Operating Systems Supported	Windows, Linux, macOS
Driver Software	NI-488.2
Bus Interface	IEEE 488
Data Transfer Rate	Up to 8 MB/s
Compatibility	IEEE 488.1, IEEE 488.2
Connector Type	24-pin IEEE 488 connector
Maximum Cable Length	20 m total system length
Number of Devices Supported	Up to 14 devices per bus